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Finding the Fourth Proportional to 136,595.60, 204,893.40 and 99,416.60

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Solution

The fourth proportional to 136,595.60, 204,893.40 and 99,416.60 is: 149,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,595.60 : 204,893.40 = 99,416.60 : x
  2. Step 2: Convert to fraction form
    136,595.60/204,893.40 = 99,416.60/x
  3. Step 3: Cross multiply
    136,595.60x = 204,893.40 × 99,416.60
  4. Step 4: Simplify right side
    136,595.60x = 20,369,805,190.44
  5. Step 5: Solve for x
    x = 20,369,805,190.44/136,595.60
  6. Step 6: Final answer
    x = 149,124.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.